in cookbooks/fb_timers/libraries/timers.rb [78:86]
def minutes
fail "A value is required for #{__method__}" unless @value
fail 'A value cannot be > 60' if @value > 60
fail 'A value cannot be <= 0' if @value <= 0
return 'hourly' if @value == 60
"*:0/#{@value}:0"
end